The Beverley at Paull was ex Farnborough (and ex Paull and ex Leconfield I believe). It was sold by MOD to Autair/Court Line to transport RB211s for their Tristar fleet, but the airline then went bust. I recall Farnborough pilots (Rich Rhodes was one I think) flew it from Luton to Paull in about '73 or '74; from there it eventually went to the army Museum of Transport at Leconfield; presumably it's now gone back to Paull.
My own experiences as an ATC cadet were:
Cadets flying in the tailboom; one of them saw this lever on the floor and decided to find out what it was for; it took several cadets jumping on the hatch in the floor to close it again! (Later mentioned in 'Air Clues')
On a later flight on a sunday (an 'affiliation' visit to Abingdon where a volunteer crew came in to fly cadets without the aid of flight line mechanics) as we taxiied in, the loadmaster called several of us more senior cadets down into the main fuselage, where he explained there was no parking brake and no-one to chock the aircraft so on his signal and before shutdown, we were to leap out, grab a set of chocks, and place them either side of the main bogies.
Sadly, less than a year later, I happened to drive past Bicester and saw at least three on the firedump there - must have been about '69 or '70.